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The national high school sports database reports that players of lacrosse average 55 goals per season. The standard deviation for goals per season is 22. To qualify for the national Junior Olympics a lacrosse player must be in the top 1% of the nation. How many goals must a player score in one season in order to qualify for the Junior Olympic team? Assume that that normal distribution and the standard scores table in the back of your book will apply to this question. Explain why this number is so much larger than the average number of goals made. Also explain how you use the table from the back of the book to arrive at this answer.
What is the probability that in the next 15 minutes information about 10 or fewer potential customers arrives and what is the probability that 3 or fewer of the calls are successful
a professor in the school of business wants to investigate the prices of new textbooks in the campus bookstore and the
Perform 5 t-tests on the data comparing C1 to C2 on each of the 5 questions. Indicate which of the 5 variables has a difference between C1 and C2.
Develop an estimated regression equation relating the top speed with the boat's beam and horsepower rating and compute and interpret and R2 and R2a
a machine is set to pump cleanser into a process at the rate of 9 gallons per minute. upon inspection it is learned
Estimate a regression model with trend & season dummies to forecast the next year sales:
The national average SAT score is 1019. If we assume a normal distribution with σ = 90, what is the 90th percentile score? What is the probability that a randomly selected score exceeds 1200?
Approximately what percentage of the manufacturer's batteries will last between 40 months and 80 months? suppose your battery lasts 37 months. What could you infer about the manufacturer's claim?
The management of a department store is interested in estimating the difference between the mean credit purchases of customers using the store's credit card versus those customers using a national major credit card.
the lengths of pregnancies are normally distributed with a mean of 266 days and a standard deviation of 15 days.a find
The random variable x, which is the number of occurrences of an event over an interval of ten minutes. It can be assumed that the probability of an occurrence is the same in any two time periods of an equal length. It is known that the mean number..
when the null hypothesis for an anova analysis comparing four treatment means is rejectedselect onea. 4 comparisons of
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